public HttpResponseImpl response() throws IOException, InterruptedException {
HttpRequestImpl r = request;
if (r.timeval() != 0) {
// set timer
td = new TimedEvent(r.timeval());
client.registerTimer(td);
}
while (attempts < max_attempts) {
try {
attempts++;
Exchange currExchange = getExchange();
requestFilters(r);
HttpResponseImpl response = currExchange.response();
Pair<HttpResponse, HttpRequestImpl> filterResult = responseFilters(response);
HttpRequestImpl newreq = filterResult.second;
if (newreq == null) {
if (attempts > 1) {
Log.logError("Succeeded on attempt: " + attempts);
}
cancelTimer();
return response;
}
response.body(HttpResponse.ignoreBody());
setExchange(new Exchange(newreq, currExchange.getAccessControlContext()));
r = newreq;
} catch (IOException e) {
if (cancelled) {
throw new HttpTimeoutException("Request timed out");
}
throw e;
}
}
cancelTimer();
throw new IOException("Retry limit exceeded");
}
/**
* Process an incoming HTTP request on the Socket that has been assigned to this Processor. Any
* exceptions that occur during processing must be swallowed and dealt with.
*
* @param socket The socket on which we are connected to the client
*/
private void process(Socket socket) {
boolean ok = true;
boolean finishResponse = true;
SocketInputStream input = null;
OutputStream output = null;
// Construct and initialize the objects we will need
try {
input = new SocketInputStream(socket.getInputStream(), connector.getBufferSize());
} catch (Exception e) {
log("process.create", e);
ok = false;
}
keepAlive = true;
while (!stopped && ok && keepAlive) {
finishResponse = true;
try {
request.setStream(input);
request.setResponse(response);
output = socket.getOutputStream();
response.setStream(output);
response.setRequest(request);
((HttpServletResponse) response.getResponse()).setHeader("Server", SERVER_INFO);
} catch (Exception e) {
log("process.create", e);
ok = false;
}
// Parse the incoming request
try {
if (ok) {
parseConnection(socket);
parseRequest(input, output);
if (!request.getRequest().getProtocol().startsWith("HTTP/0")) parseHeaders(input);
if (http11) {
// Sending a request acknowledge back to the client if
// requested.
ackRequest(output);
// If the protocol is HTTP/1.1, chunking is allowed.
if (connector.isChunkingAllowed()) response.setAllowChunking(true);
}
}
} catch (EOFException e) {
// It's very likely to be a socket disconnect on either the
// client or the server
ok = false;
finishResponse = false;
} catch (ServletException e) {
ok = false;
try {
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_BAD_REQUEST);
} catch (Exception f) {;
}
} catch (InterruptedIOException e) {
if (debug > 1) {
try {
log("process.parse", e);
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_BAD_REQUEST);
} catch (Exception f) {;
}
}
ok = false;
} catch (Exception e) {
try {
log("process.parse", e);
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_BAD_REQUEST);
} catch (Exception f) {;
}
ok = false;
}
// Ask our Container to process this request
try {
((HttpServletResponse) response).setHeader("Date", FastHttpDateFormat.getCurrentDate());
if (ok) {
connector.getContainer().invoke(request, response);
}
} catch (ServletException e) {
log("process.invoke", e);
try {
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
} catch (Exception f) {;
}
ok = false;
} catch (InterruptedIOException e) {
ok = false;
} catch (Throwable e) {
log("process.invoke", e);
try {
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
} catch (Exception f) {;
}
ok = false;
}
// Finish up the handling of the request
if (finishResponse) {
try {
response.finishResponse();
} catch (IOException e) {
ok = false;
} catch (Throwable e) {
log("process.invoke", e);
ok = false;
}
try {
request.finishRequest();
} catch (IOException e) {
ok = false;
} catch (Throwable e) {
log("process.invoke", e);
ok = false;
}
try {
if (output != null) output.flush();
} catch (IOException e) {
ok = false;
}
}
// We have to check if the connection closure has been requested
// by the application or the response stream (in case of HTTP/1.0
// and keep-alive).
if ("close".equals(response.getHeader("Connection"))) {
keepAlive = false;
}
// End of request processing
status = Constants.PROCESSOR_IDLE;
// Recycling the request and the response objects
request.recycle();
response.recycle();
}
try {
shutdownInput(input);
socket.close();
} catch (IOException e) {;
} catch (Throwable e) {
log("process.invoke", e);
}
socket = null;
}
/**
* Parse the incoming HTTP request headers, and set the appropriate request headers.
*
* @param input The input stream connected to our socket
* @exception IOException if an input/output error occurs
* @exception ServletException if a parsing error occurs
*/
private void parseHeaders(SocketInputStream input) throws IOException, ServletException {
while (true) {
HttpHeader header = request.allocateHeader();
// Read the next header
input.readHeader(header);
if (header.nameEnd == 0) {
if (header.valueEnd == 0) {
return;
} else {
throw new ServletException(sm.getString("httpProcessor.parseHeaders.colon"));
}
}
String value = new String(header.value, 0, header.valueEnd);
if (debug >= 1) log(" Header " + new String(header.name, 0, header.nameEnd) + " = " + value);
// Set the corresponding request headers
if (header.equals(DefaultHeaders.AUTHORIZATION_NAME)) {
request.setAuthorization(value);
} else if (header.equals(DefaultHeaders.ACCEPT_LANGUAGE_NAME)) {
parseAcceptLanguage(value);
} else if (header.equals(DefaultHeaders.COOKIE_NAME)) {
Cookie cookies[] = RequestUtil.parseCookieHeader(value);
for (int i = 0; i < cookies.length; i++) {
if (cookies[i].getName().equals(Globals.SESSION_COOKIE_NAME)) {
// Override anything requested in the URL
if (!request.isRequestedSessionIdFromCookie()) {
// Accept only the first session id cookie
request.setRequestedSessionId(cookies[i].getValue());
request.setRequestedSessionCookie(true);
request.setRequestedSessionURL(false);
if (debug >= 1)
log(
" Requested cookie session id is "
+ ((HttpServletRequest) request.getRequest()).getRequestedSessionId());
}
}
if (debug >= 1)
log(" Adding cookie " + cookies[i].getName() + "=" + cookies[i].getValue());
request.addCookie(cookies[i]);
}
} else if (header.equals(DefaultHeaders.CONTENT_LENGTH_NAME)) {
int n = -1;
try {
n = Integer.parseInt(value);
} catch (Exception e) {
throw new ServletException(sm.getString("httpProcessor.parseHeaders.contentLength"));
}
request.setContentLength(n);
} else if (header.equals(DefaultHeaders.CONTENT_TYPE_NAME)) {
request.setContentType(value);
} else if (header.equals(DefaultHeaders.HOST_NAME)) {
int n = value.indexOf(':');
if (n < 0) {
if (connector.getScheme().equals("http")) {
request.setServerPort(80);
} else if (connector.getScheme().equals("https")) {
request.setServerPort(443);
}
if (proxyName != null) request.setServerName(proxyName);
else request.setServerName(value);
} else {
if (proxyName != null) request.setServerName(proxyName);
else request.setServerName(value.substring(0, n).trim());
if (proxyPort != 0) request.setServerPort(proxyPort);
else {
int port = 80;
try {
port = Integer.parseInt(value.substring(n + 1).trim());
} catch (Exception e) {
throw new ServletException(sm.getString("httpProcessor.parseHeaders.portNumber"));
}
request.setServerPort(port);
}
}
} else if (header.equals(DefaultHeaders.CONNECTION_NAME)) {
if (header.valueEquals(DefaultHeaders.CONNECTION_CLOSE_VALUE)) {
keepAlive = false;
response.setHeader("Connection", "close");
}
// request.setConnection(header);
/*
if ("keep-alive".equalsIgnoreCase(value)) {
keepAlive = true;
}
*/
} else if (header.equals(DefaultHeaders.EXPECT_NAME)) {
if (header.valueEquals(DefaultHeaders.EXPECT_100_VALUE)) sendAck = true;
else
throw new ServletException(sm.getString("httpProcessor.parseHeaders.unknownExpectation"));
} else if (header.equals(DefaultHeaders.TRANSFER_ENCODING_NAME)) {
// request.setTransferEncoding(header);
}
request.nextHeader();
}
}
